Dueteronomy 13

Deut 13:1-5 13:1 If a prophet, or one who foretells by dreams, appears among you and announces to you a miraculous sign or wonder, 2 and if the sign or wonder of which he has spoken takes place, and he says, "Let us follow other gods" (gods you have not known) "and let us worship them," 3 you must not listen to the words of that prophet or dreamer. The LORD your God is testing you to find out whether you love him with all your heart and with all your soul. 4 It is the LORD your God you must follow, and him you must revere. Keep his commands and obey him; serve him and hold fast to him. 5 That prophet or dreamer must be put to death, because he preached rebellion against the LORD your God, who brought you out of Egypt and redeemed you from the land of slavery; he has tried to turn you from the way the LORD your God commanded you to follow. You must purge the evil from among you. NIV

This passage has been used to discredit Yeshua as Messiah, because of how the christian church has portrayed Him. The church has in effect been saying:
Yeshua came and started a new religion.
He came and abolished the Torah of Moses.
He came and we now worship the NT God of grace and not the stern law-giver of the OT.

Beloved, we know that these statements are not true. Yeshua was Jewish right down to his tzi-tzis, He kept and upheld the Torah perfectly, and was God incarnate, thus echad.

Ouch!